APA (7 ম সংস্করণ) উদ্ধৃতি

Spellerberg, I. F. (1992). Evaluation assessment conservation: Ecological guidelines for determining priorities for nature conservation. Chapman and Hall.

শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতি

Spellerberg, Ian F. Evaluation Assessment Conservation: Ecological Guidelines for Determining Priorities for Nature Conservation. London: Chapman and Hall, 1992.

M.L.A (9 ম সংস্করণ) উদ্ধৃতি

Spellerberg, Ian F. Evaluation Assessment Conservation: Ecological Guidelines for Determining Priorities for Nature Conservation. Chapman and Hall, 1992.